LEDs vs Metal halides.

[lastlight]

Originally Posted by gobytron

You can get dimmable MH...
http://www.youtube.com/watch?v=U0CdJS_9Sy0

according to the description and what we're seeing that's not true dimming but your typical select-a-watt ballast where it has multiple power settings.

For true dimming the only one i know of that's readily available is the Sfiligoi ACLS system.

http://www.3reef.com/forums/3reef-ra...goi-47867.html

And regarding shimmer, my tiny Kessil a150 LED has more shimmer than my 250w halides had! Fixtures using many separate 3w chips don't produce the same shimmer as the cannon style pendant though.